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OpenStudy (anonymous):
How do I find the last term of an arithmetic sequence when the first term is 2, and the fourth term is 11.?
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OpenStudy (anonymous):
Last term???
OpenStudy (anonymous):
They didn't give us a last term.. The problem states: The first term of an arithmetic sequence is 2, and the fourth term is 11. Find the sum of the first 50 terms. Obviously, I'm using sigma notation, but I don't have the last term to plug into it....
OpenStudy (anonymous):
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